(19)
(11) EP 1 582 579 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.12.2005 Bulletin 2005/51

(43) Date of publication A2:
05.10.2005 Bulletin 2005/40

(21) Application number: 05290685.6

(22) Date of filing: 29.03.2005
(51) International Patent Classification (IPC)7C11D 3/37
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 29.03.2004 JP 2004094394
29.03.2004 JP 2004095349

(71) Applicant: NIPPON SHOKUBAI CO., LTD.
Osaka-shi, Osaka 541-0043 (JP)

(72) Inventors:
  • Kanzaki, Akihiko
    Suita-shi Osaka 564-0024 (JP)
  • Fujii, Yoshikazu
    Suita-shi Osaka 564-0024 (JP)
  • Hemmi, Akiko
    Osaka-shi Osaka 533-0005 (JP)
  • Yamada, Satoshi
    Suita-shi Osaka 564-0025 (JP)
  • Toriya, Shuichi
    Suita-shi Osaka 564-0024 (JP)
  • Yamaguchi, Shigeru
    Yao-shi Osaka 581-0872 (JP)

(74) Representative: Hubert, Philippe et al
Cabinet Beau de Loménie 158, rue de l'Université
75340 Paris Cédex 07
75340 Paris Cédex 07 (FR)

   


(54) Detergent and fabric care additive containing carboxylic acid polymer


(57) The present invention provides a detergent and fabric care additive containing a high molecular weight carboxylic acid polymer excellent in solubility in the use of a fabric treatment product such as a detergent and fabric care additive. A detergent and fabric care additive containing a carboxylic acid polymer powder, wherein the carboxylic acid polymer powder satisfies the following conditions (a) and (b) [(a) at least one of conditions that a 0.2% by weight aqueous solution has a viscosity of 10 mPa.s or higher and that a 1% by weight aqueous solution has pH lower than 6 and a 10% by weight aqueous solution has a viscosity of 300 mPa.s or higher and (b) at least one of conditions that 50% by weight or more of the carboxylic acid polymer powder passes through 20 mesh of a sieve according to JIS (Z8801) and that the average particle diameter is 600 µm or smaller]. A detergent and fabric care additive containing a carboxylic acid polymer powder, wherein the carboxylic acid polymer powder satisfies the following conditions (c) and (d) [(c) a 0.2% by weight aqueous solution of the carboxylic acid polymer powder has a viscosity of 10 mPa.s or higher and (d) the carboxylic acid polymer powder contains a carboxyl group and a sulfonic acid group and the ratio of the sulfonic acid group-containingmonomer relative to 100% by mole of all monomers comprising the polymer is not less than 0.5% by mole and not more than 90% by mole].





Search report